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The BUILD_STACKUP_FROM_FILE MACRO Provides an interface to the powerful new dal Stackup Tool. It points to the Stackup Spreadsheet that dal Stackup will read and Tells the dal constraint tool to read in the stackup spreadsheet

Click here to download the supporting dal Tools User Guide for the stackup tool: Stackup.pdf

**This MACRO has not been implemented, in dal constraint, the manual process described in the Stackup.pdf document is used for now.

Example:

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BUILD_STACKUP_FROM_FILE MACRO

Syntax:

BUILD_STACKUP_FROM_FILE | NAME=> | BOARD_STACKUP

Attributes:

1. STACKUP_FILE_NAME
2. XML_FORMAT
3. IMPEDANCE_COL 

STACKUP_FILE_NAME Attribute

This points to the File that dal stackup will read to import the stackup data.

XML_FORMAT Attribute

Valid Values

1. TTM
2. GCE
3. STD 

This is used to tell the dal stackup tool which format the STACKUP_FILE_NAME uses to provide vendor stackup data

TTM and GCE are 2 manufacturers who provide stackup data in a consistent spreadsheet format which dal stackup can extract data from

STDdal stackup can export the current stackup rules using  its own (STD) spreadsheet format and can also import using what it exports.

IMPEDANCE_COL Attribute

This is a reserved attribute

dal constraints may need to use this attribute to tell the stackup tool what columns to use to extract the IMPEDANCE values from the stackup file

Valid Value:

1. CALCULATED